package cn.com.dealme.filter;

import java.io.IOException;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;

public class CharacterEncodingFilter implements Filter {
	
	private String encoding = "UTF8";

	public void destroy() {
		
	}

	public void doFilter(ServletRequest req, ServletResponse resp,
			FilterChain chain) throws IOException, ServletException {
		req.setCharacterEncoding(encoding);
		resp.setCharacterEncoding(encoding);
		chain.doFilter(req, resp);
	}

	public void init(FilterConfig config) throws ServletException {
		String encod = config.getInitParameter("encoding");
		if(encod != null && !"".equals(encod)) {
			encoding = encod;
		}
	}

}
